The decision-making process of crime scene investigation: A trace-centric utility-based case study

Area of Science:

• Forensic Science
• Criminal Justice
• Decision Science

Background:

• Crime scene investigation decision-making processes are complex and rarely studied explicitly.
• The production of evidence for court relies heavily on initial crime scene steps.
• Understanding trace utility is crucial for effective investigations.

Purpose of the Study:

• To explore decision-making in crime scene investigations using a trace-centric, utility-based framework.
• To analyze the factors influencing trace collection and processing decisions.
• To assess the utility of a trace-centric approach in forensic investigations.

Main Methods:

• Case study of a single attempted murder investigation.
• Examination of the sequence of events, actors, actions, objects, and traces.
• Analysis of trace utility throughout the investigation and judicial process.
• Application of a trace-centric, utility-based framework.

Main Results:

• Detailed examination of trace-centric decision-making in a real-world case.
• Identification of key factors influencing trace collection and analysis.
• Assessment of the utility of collected traces in the investigation and judgment.
• Evaluation of the trace-centric approach against other forensic metrics.

Conclusions:

• A trace-centric, utility-based framework offers valuable insights into crime scene investigation decision-making.
• Understanding trace utility is paramount for effective evidence production.
• Further research should extend beyond primary crime scenes to encompass broader investigative contexts.